The international economic system is an important platform for China to conduct economic diplomacy and participate in global economic governance.Since the end of World War Ⅱ,the construction of the international system has primarily been focused on the economic sector.The establishment of the World Bank,the International Monetary Fund(IMF)and the General Agreement on Tariffs and Trade(GATT)officially kicked off the historical process of the construction of the international economic system and laid foundation for institutional changes thereafter.As the international economic system continues to develop,the role that China plays in has also been changing.This is not only a strategic choice that China has made based on its judgment of its own power and international situation,but also an objective requirement and necessary condition for the changing international economic system.